Effect of Tungsten Powder Granularity on W-Cu Electrode

Compared with other electrode, tungsten copper electrode has many advantages, such as high quality, high efficiency, low wastage and high MRR (Material Removal Rate), etc. Therefore, tungsten copper electrode is suitable for rotating speed mold and finish of hard to processing material. At present, the most literatures are focused on the influence of processing, including W skeleton, density, hardness and uniformity on tungsten copper electrode, but this paper is inclined to discuss that tungsten powder granularity effects.

1. Effects on the Tissue of Tungsten Copper Electrode

The experiments result shows that the finer of tungsten powder, the more uniformly W powder distributes and the much more possibility of weakness and pores. On the contrary, the larger size of tungsten grain, the lower dispersion and the fewer pores left.












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